This is, again, pretty normal.
Hollywood learned its lesson (well, lessons) about not advertising too early when some films didn't do as well as they hoped and people said they heard about the movie so long ago they didn't realise it was only just out.
These days they have very narrow windows for marketing so it's fresh in people's minds and they get more bang for their Buck. In the over saturated streaming market this is more important than ever usual results in even tighter ad windows.